Automatic Transmission, How it works?

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The operation of an automatic transmission is explained here with help of animation. Allison-1000 transmission model, which has 6 speed and reverse is used for this purpose. The video starts with an explanation of planetary gear set. Just by engaging few clutch packs different output speed can be achieved in automatic transmission. A brief introduction of the torque converter is also given here.
Here is the 2D version of the video. In my opinion this video is more helpful than the 3D video to understand the technology.
• Automatic Transmission...
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[@IamTiper]

You know those videos where someone explains something complicated, in a simple way, and suddenly you see how easy it is? This is not one of them.

[@med7756]

😂😂😂😂 I swear after 2nd gear my mind told me : Bye Bye, I need a trip now.🤣🤣🤣🤣🤣

[@Stealfos]

Glad im not the only one

[@amine_d]

😂😂😂

[@Club-kc9wl]

I wonder if there is a better video for automatics out there

[@ArnavMazumder9]

They lost me after 2nd gear

[@koorite6255]

These comments are awesome! I just finished a transmission class in college and didn't fully understand how an automatic transmission works, so I thought I would watch a video on it, and now I still dont understand.

[@panzerwaffen2873]

And two months later you still don't understand lol

[@scarea2691]

@@panzerwaffen2873 lmao

[@panzerwaffen2873]

@@scarea2691 it is what it is lmfao

[@sanjeevkoirala5114]

You guys are awesome you guys might have understood something and here I am taking the class in Japanese language didn’t understood a thing thought KZbin would help me finished the video and I am like what was that😂😂😂

[@anthonybush3134]

Right??

[@je19662008]

Would you now explain something simple, like the quantum phase shifting of subatomic particles?

[@maneesh2316]

Underrated comment

[@alexvega5756]

Way too underrated 😂

[@bigscrap4242]

🍅

[@safeegull22]

Well, what do you think quantum physics is easy, ,, it's eaten my 1 /4 brain,

[@pandurangarao6026]

I got a good sleep after watching 1 min of video

[@RayDragonfly]

*For anyone struggling to understand:* _First watch the video and try to understand where parts are and how they interact and come back to this comment if you have questions._ (I'll be referring to each part as P1, P2, P3, P4, and P5. C1 acts on P1, C2 acts on P2, C3 acts on P3, C4 acts on P4, and C5 acts on P5) P1 is the Hub and case P2 is the P4 planet carrier and clutch module P3 is the first set of gears (ring gear, planet gears, and sun gear) and the P4 planet carrier P4 is the second set of gears (ring gear, planet gears, and sun gear) and the P5 planet carrier P5 is the third set of gears (ring gear, planet gears, and sun gear) and the output shaft In this type of automatic transmission the clutch packs are always in contact with whatever they're meant to engage with they're just allowed to spin freely. This creates friction between any parts in contact with the clutch packs which is why manual transmission systems are generally more fuel efficient. When the clutch packs are engaged they are no longer able to spin freely to induce a lot more friction in turn stopping what they're engaged to. For example: The C1 clutch is connected to the hub (gear) on the end of the input shaft and the case on the intermediate shaft. When disengaged the C1 clutch will be able to spin freely without imparting much of any force on the intermediate shaft. When engaged the C1 clutch increases friction with the hub to essentially extend the hub to the case and apply force to the intermediate shaft. This lets the input shaft turn the intermediate shaft directly as long as the C1 clutch is engaged. *For the first, seconds, third, and fourth gear:* The C1 clutch pack engages to turn the intermediate shaft as explained above. The intermediate shaft is only connected to P4 and P5 sun gears so C1 only affects P4 and P5. *First gear:* First gear uses P1 and P5 C1 and C5 engage in first gear. C1 engages because the intermediate shaft is only turned when C1 is engaged. This means that the sun gear in P5 is only turned when C1 is engaged. A problem arises however, if we only engage C1 we'll also be turning the sun gear in P4 which can turn the P5 planet carrier/ring gear. To combat this C5 is also engaged. This "connects" the P5 ring gear to the transmission case. The transmission case is stationary so when C1 engages it stops the ring gear from being able to turn. So C1 engages to supply force to the P4 and P5 sun gear. C5 engages to stop the P4 sun gear from turning the P5 ring gear. *Second gear:* Second gear uses P1 and P4. C1 and C4 engage in second gear. C1 engages because the intermediate shaft is only turned when C1 is engaged. This means that the sun gears in P4 and P5 are turned only when C1 is engaged. When the P5 sun gear turns, it only turns the P5 planet gears. When the P4 sun gear turns, it turns the P4 planet gears however these are connected to the P5 planet carrier. This means that the P4 planet gears increase the speed the P5 ring gear. This leads to the planet gears turning more quickly than in first gear. This increases the output shaft turn speed. A problem arises when we don't engage C4. The P3 sun gear isn't connected to the intermediate shaft but instead connected to the input shaft. This means that the P3 sun gear turns at any point the engine is supplying force. The P3 planet gears turn the P4 planet carrier at the same rate as the input shaft, this would be 1:1 input:output which would require too much force from the engine. This would result in the engine stalling (Results in a jump from first gear to fourth gear) To combat this, the C4 clutch is engaged. The C4 clutch "connects" the P4 ring gear to the gear set case. This means that C4 stops P3 from supplying force to the output shaft. So C1 engages to supply force to the P4 and P5 sun gears. C4 engages to stop the P3 sun gear from turning the P4 planet carrier (prevents a jump to fourth gear). *Third gear:* Third gear uses P1 and P3. C1 and C3 engage in third gear. C1 engages to turn P4 and P5 sun gears. The P3 sun gear connects directly to the clutch module which is in turn connected to the input shaft. This means that the P3 sun gear is turning as long as the engine is supplying force. A problem arises when C3 isn't engaged. The P3 ring gear is only connected to C3 and the P3 ring gears. When the P3 sun gear turns while C3 isn't engaged it would turn the P4 planet carrier. This means that they will enter fourth gear resulting in engine strain/stalling. When C3 is engaged, the P3 ring gear remains stationary slowing the P4 ring gear. This means that the force supplied to the output shaft is decreased. So C1 engages to supply force to the P4 and P5 sun gears. C3 engages to reduce torque required from the engine (prevents a jump to fourth gear). *Fourth gear:* Fourth gear uses P1 and P2. C1 and C2 engage in fourth gear. C1 engages to turn the P4 and P5 sun gears. P2 is connected to the clutch module and the P1 planet carrier When C2 is engaged, P2 turns at the same rate as the input shaft. This results in the ring gear and sun gear of P5 turning at the same rate. This means that the input and output shaft turn at the same speed. If C2 is not engaged you would remain in fourth gear but it requires more force to turn the output shaft which is less efficient. This is because P3 is connected to the input shaft. So C1 engages to supply force to the P5 sun gear. C2 engages to supply direct force to the P5 ring gear. *Fifth gear:* Fifth gear uses C2 and C3. C2 engages to turn the P4 planet carrier. C3 engages to stop the P3 ring gear. With C1 disengaged the intermediate shaft can rotate independently of the input shaft. When C3 is engaged it prevents entering fourth gear and supplies the P4 ring gear with force. This results in a greater turn rate at the output shaft. So C2 engages to supply force to the P4 planet carrier. C3 engages to supply force to the P4 planet carrier and prevent fourth gear. *Sixth gear:* Sixth gear uses C2 and C4. C2 engages to turn the P4 planet carrier C4 engages to stop the P4 ring gear. With C1 disengaged the intermediate shaft can rotate independently of the input shaft. When C4 is engaged it prevents entering fourth gear and supplies the P4 planet carrier with force. This results in a greater turn rate at the output shaft than fifth gear because it requires more torque to move the input shaft. So C2 engages to supply force to the P4 planet carrier. C4 engages to stop the P4 ring gear and prevent fourth gear. *Reverse gear:* Reverse gear uses C3 and C5. Force is supplied to the intermediate shaft through P3. C3 is used to stop the P3 ring gear to prevent counter rotation from P4/friction. This allows the P3 planet gears to revolve around the P3 sun gear. This results in the P4 ring gear turning in the same direction of the input shaft. The P4 ring gear will cause the P4 planet gears to rotate in the same direction. The P4 sun gear will rotate in the opposite direction of the planet gears. This results in the intermediate shaft having opposite rotation to the input shaft. C5 is used to stop the P4 ring gear to prevent counter rotation from the output shaft/friction. This allows the P5 planet gears to revolve around the P5 sun gear. The P5 sun gear rotates in the opposite way to the input shaft. The P5 planet gears revolve around the P5 sun gear in the same direction it rotates. This supplies a force to the output shaft that is opposite the force supplied to the input shaft. So C3 allows P3 to rotate the P3 planet carrier. C5 allows the P5 planet gears to revolve around the P5 sun gear. If you have any questions feel free to ask in the replies!

[@Prabhat_Vlogs1]

Thanks a lot for your hardwork..... 👍👍

[@MrDirtBikess]

cheers

[@sairocks128]

Thanks alot.

[@bhavitarora4006]

I'm not reading all that but you can have my like

[@ganeshjadhav1900]

Great efforts. Can you please tell me this is automatic transmission then who and why the clutch pack need to engage and disengage. How automatically these clutch packs will detach and attaches

[@TheDutchGuy110]

Me: trying to understand Narrator: *Adds another clutchpack and planetary gear set* Me: Blue screen of death

[@yamenarhim9336]

Explained exactly what i am experiencing xD

[@davidastudillo2163]

jajjaj

[@davidoickle1778]

I'm just glad it works.

[@vishnumnair4728]

Same

[@moadbahron]

but wait!...there is more Clutchpack and Planetary Gear set

[@corazzinatanner498]

I've watched and rewatched this, the only thing that makes sense is why transmissions are so damn expensive

[@louisedwards6681]

Thank you LOUIS EDWARDS, EDWARDS BROTHER'S TRANSMISSION ROANOKE RAPIDS NORTH CAROLINA 😁🔧⚙️🏁🇺🇸

[@Sodium_Hypobromite]

@@louisedwards6681 the comments section on this video surpasses every other video I've seen in the level of weird

[@richardcruz-torres4942]

Yes but there is still one thing I'm still confused about transmissions: I saw a video of someone bringing one of these apart and the thing I was most confused about was the 3 layers of mazes and 4 small metal balls in each one of them and why it was so important not to move them? I still don't understand that part's function.

[@hp2084]

@@richardcruz-torres4942 Those metal balls act like valves, for the fluid, for engaging different clutches, you forget or misplace one and you are screwed.

[@christianbaril679]

its not the parts that are expensive its the knowledge on how to fix/ rebuild it your paying for

[@danielevans8910]

Some kid in my freshman engineering class made a full working miniature Lego car. Working electric engine, complete with working Lego power windows, and a full complete lego automatic transmission. Took him about 2 and a half years to complete. The guy was absolutely insane.

[@jamesharding3459]

And I thought a 3-speed manual was hard to make work. Some people's brains just work different.

[@drummer_zay9493]

It’s called research and dedication.. and genetics lol.

[@danielevans8910]

@@drummer_zay9493 yeah I forgot to mention he had autism, never spoke to anyone and only watched videos in class. Smartest and weirdest dude ever.

[@Calthecool]

What do you mean an electric engine? Like, just a normal electric motor?

[@veryslyfox]

He should change majors

[@LoveofTech]

Well, you did an okay job explaining the "transmission" part. What about the "automatic" part?

[@Admiral45-10]

This is basically how it looks like - the only thing is, that modern automatic cars with semi-clutch technology have computer-supported clutch changing mechanisms.

[@ravindujayasekara2969]

@Qᴜɪᴄᴋ Sᴀɴᴅ So it(transmission control unit) cannot be applied to the basic gearbox? why?🤯🥴

[@JA-im7cs]

@@ravindujayasekara2969 It's a computer chip. It reads input from the engine, as well as some other info, and determines when to shift gears. That part is rather simple. It short terms, it simply adjust gears when the engine is working hard enough, and the wheels are turning fast enough.

[@emilianomartinez4083]

@@ravindujayasekara2969 because that still required you to move the gears. That's what these automatics do? Is move the gears for you? The automatic takes the simplicity out of it entirely

[@asdasd-om8tj]

how does transmission control unit change the gears exactly?

[@godbwithme7586]

After 68 times of watching; I think i finally understand 2nd gear.

[@Like_Ike]

This was THEE funniest comment yet! I died when i read this! I feel u!

[@angelvelazquez1478]

I laughed sooo damn hard, this comment is so underrated 😭😂😂

[@veluvelu9523]

Same

[@Like_Ike]

@@angelvelazquez1478 i spit my food out cuz i was laughing so hard!

[@sharaelissa3965]

Hahahahaha

[@SurajSharmaFourKnob]

After this I went and read some rocketscience to relax

[@stevegarcia1796]

👍👍👍👀

[@kensmechanicalaffair]

Lmao

[@2ammm.]

Same🥱

[@jpcodnia9133]

I can follow Von Braun's Saturn V rocket (Apollo missions) stages easier than this Whoever conceived and put together the whole Automatic transmission invention is beyond genius

[@mscir]

LOL very funny.

[@SDCustoms]

Thank God for engineers... as weird as they are, I'm extremely grateful for the knowledge snd skill they possess to make things like this possible. This stuff is mind boggling.

[@Club-kc9wl]

They do the hard thinking so we don’t have to

[@crackpotfox]

We stand on the shoulders of giants. Most automatic transmissions borrow heavily from their predecessors. We have it easy these days -- the engineers of the late 1800s-1960s are definitely the real heroes.

[@alandeutsch9987]

as weird as they are?

[@SDCustoms]

@@alandeutsch9987 They're definantly unique lol.. so much so as for me to consider them "weird." It's a good weird though!

[@Dislob]

@@SDCustoms It's nothing special. Just like learning a new language. You will have to study the different parts. You need to learn the conjugation, the grammar, you will have to understand the sentence structures, the determiners, how gender is applied etc. Once you understand every part individually, you can create sentences. Once you know how to make sentences, you can make paragraphs, then chapters, then whole stories. Engineers studied. A lot. They understood the basics and build more knowledge on top a solid foundation. When that new knowledge is well understood, they can add more stories and build a tower of knowledge. You can't build the top floor if you don't have the floor below or any foundation at all.

[@danishraza2318]

I didn't have the idea that it happens all after simply pressing my accelerator. One of the brilliant inventions of engineering.

[@draiglynix5539]

Thank the computer that controls the shifts, it’s the real mvp, but the people who designed the automatic and also mvps

[@nivedlaxsea8114]

“This is the simplest form of an automatic transmission” *nervous laughter*

[@schmoozingkaboodle5405]

Beautiful comment = 😁👌

[@panda3d180]

Manaul is very simple

[@Sampson_YT]

Putin3D but harder to drive

[@Raj-hm4qd]

Btw i don't think this is simplest i have seen way simpler than this today but it was no a car gearbox.

[@davidhollenshead4892]

The simplest form is the one & two-speed automatics, not a bloody six-speed...

[@Caleb_FC]

you know i think i’ll just let my car do its thing

[@alexthelion1342]

Fr He got this

[@francoismorin6806]

omg LOL

[@petersnortum2971]

probably the best comment in my 58 years on this planet gear

[@unhappyattendantughh2469]

Furry Control for real

[@donniefoister9399]

Ya

[@Chevifier]

Well now I love manual transmissions even more. This left me with more questions than answers.😂

[@kwunmeichan8013]

For your replaying and replaying: 1:02 Ring gear stops, sun gear moves; 1:15 All move 2:43 First gear 3:26, 3:44, 3:54 Second gear 4:29, 4:53 Fourth gear 5:20 Sixth gear 5:43, 5:55, 6:19 Fifth gear 6:10 Third gear 6:31 Reverse gear

[@FaKe-dk8ym]

Ur so late bro Hope after many years this will worth

[@kwunmeichan8013]

@@FaKe-dk8ym Finally understood the planetary gear set. Instead of this six-speed one, I think any people who want to learn should start with a three-speed Simpson gear set, for which I recommend this video. After that, he can proceed to a 4-speed Ravigneaux, and then this one. kzbin.info/www/bejne/m32UlqKqh91lopI

[@jasminselmanovic5037]

What is wrong with you, you really understand this.

[@JabbBox]

@@jasminselmanovic5037 he's Chinese (no racism intended)

[@jasminselmanovic5037]

@@JabbBox I don't remember what I had for breakfast this morning, let alone remember which comment I wrote 1 year ago and about what :=)

[@wildtrex]

When they say "it's not Rocket science", they really mean to say "it's not an automatic Transmission".

[@AKX-DTGRSMP]

Turbine engine is much easier to understand than this.

[@michaelbujaki2462]

I'm glad that the cars coming out in the next few years won't have transmissions.

[@JMGlider]

@@AKX-DTGRSMP Look into turbine helicopters, you have both ;)

[@tostadatheviking7828]

I actually understand rocket science pretty well, and I thought I understood automatic transmissions until I watched this video

[@SergeantExtreme]

@Unkwon Malaysian Guy CVT: What's reliability?

[@deraldmadson1732]

I was a physics major in college and there was definitely some stuff where I just accepted it and said well the numbers work out. This is one of those times.

[@robbinvan1172]

if even you can't understand it. i wil give up 😅

[@stopthephilosophicalzombie9017]

I still don't understand how planetary gears work but I think I might just be overthinking it.

[@slutgutter7182]

fr, some things just have to be taken as given laws and leave it at that

[@fabioooh]

​@@stopthephilosophicalzombie9017I kinda understand it but somethings just seem not logical or just taked for granted ,I still feel doubt on how 6th gear is faster than direct drive when he literally said input 1> input 2 = faster and 6 gear is the opposite ,I do get it but that part in the video is rushed too much

[@TheThatoneguy12121]

"If we apply C4 as well, the whole car explodes."

[@badger4579]

Thank you. Incredibly complex machines to do something most of us take for granted every day.

[@willfoster9715]

Learning difficulty: 1) Light speed 2) planetary colonisation 3) galactic travel and using sub dimension engines for first time dimensional travel 4) space time reversal using gravity in a black whole 5) simplest form of automatic transmission

[@maneesh2316]

Lmao

[@shifatrahman9181]

​​@@veryslyfox oh yeah sure and definetely could not make the invention of well, literally algorithms used for making COMPUTERS WORK! gtfo here with ur sexist opinions

[@Camaro.737]

@@veryslyfox how do you "men" always have to bring this shit into everything. Did this video ever mention anything about men vs women? God you must suck at parties

[@mohmmadrafijalgaonkar8028]

It does not even feel like a joke. Its just facts.

[@IndranilChipade]

😂😂😂

[@irelandbloke]

I understood this, right up to when I started the video

[@jordanp8063]

Huh. None of it was hard for me...until the end, when I realized I had been fantasizing about space travel since the words "planetary gears" were introduced

[@irelandbloke]

@@jordanp8063 lol :)

[@brianchisnell1548]

I once made a bird bath out of a trash can lid!

[@irelandbloke]

@@brianchisnell1548 lol :)

[@sahilkate1061]

Same, but it took me hours to explain my homie

[@chasbodaniels1744]

Both of my ex-brothers in law have their own automatic xmission repair shops, and neither one finished 11th grade. As someone else commented, their brains must work differently than most of us.

[@fortimusprime]

OK wow. The transmission engineering is INSANE! That is absolutely amazing technology! I can’t believe I finally understood how this thing works!!

[@TheLeftRbabieskillers]

I think of myself as a smart guy, ... But I started freaking out when I got lost 2 minutes into the video, but after reading the comments I regained some of my confidence back.

[@triparadox.c]

This is exactly what happened to me LMAO

[@Ahmed-cn6hj]

" Freaking out "? What for? Not understanding something? Grow up.

[@jonnijames]

AHAHhahahaa gold

[@dirty_italian_]

WE'RE HERE IN UNITY AND STUPIDITY WITH YOU BROTHER ✊🏼✊🏼✊🏼

[@sahilkate1061]

Don't worry it's easy

[@MohaMMaDiN55]

Whenever I become happy thinking about a planetary gear set and how it operates, another planetary gear set is added to make me unhappy about this endless process.

[@drskelebone]

Thank you for saving the torque converter until last. After the first explanation of the gears, and the follow up with the second set, I kind of intuited how you build up whatever system. But every other video I watches started with the torque converter, and were talking about how it makes spinny A go to spinny B, and it's actually the bit where the spinnies don't go together that makes it important. Thank you!

[@estieFa]

Thank you for helping me to understand transmissions less than I ever imagined possible.

[@uglymofo]

"But here is the tricky part..." Melted brain: oh it's tricky now, isn't it?

[@boosackNooDoe]

LOL

[@kensmechanicalaffair]

Lol

[@jpcodnia9133]

Hahahahahahahahahahahahahahahahah Can't stop laughing :D

[@konanoobiemaster]

normally i feel smarter after watching a video... not this time.

[@Topsiekku]

sama tapahtu mullekkin

[@herbbowler2461]

You never have two inputs. You alway have one input one out and one brake no matter how made the gear system

[@LJT9393]

*Input:* Clicking video *Output:* Ultimate confusion

[@minercraftal]

Not a clear video... but contains pretty good information.

[@rosegold-beats]

I became dumber

[@ManhCuong21]

after rewatch this video for 3 times, and other videos, I finally understand it. Thanks, you're doing a great job

[@charlieramirezskateboardin6315]

After watching this a few times over a few months, and understanding how clutches work. This makes a lot more sense.

[@kingash85]

Me 2019: ''I will NOT drive an automatic UNTIL I understand this video'' Me 2030: (Still driving a manual)

[@lemmetellyousomething679]

Me 2050

[@sumirunihon]

*me driving an electric self-driving hoover car in vr with a manual in 2077* right with ya buddy

[@suprememasteroftheuniverse]

@@sumirunihon how can you drive a self driving car?

[@sumirunihon]

@@suprememasteroftheuniverse neuralink

[@blitzn00dle50]

I wanna keep a manual car because I already ride a bike with manual transmission (no shit) and I want to have something to occupy me while driving

[@rEsonansDx]

Manual Transmission = harder to operate, easier to understand Automatic Transmission = easier to operate, can barely understand.

[@willy6819]

rEsonansDx true

[@richsweeney1115]

Stick is easy to drive

[@shwt121]

Sticks are easier to drive & control.......but automatics are soothing- no manual shifting required.

[@Topsiekku]

Manuaali on helpompi. Ja kestävämpi.

[@Topsiekku]

Ja automaatti kiihtyy hitaasti ja syö enempi bensaa.

[@nileborja8891]

Oh my gosh! This video was very informative. I learned a lot about how brake fluid lubricates the master cylinder in the engine block, and how 3rd party combustion engines work with electrical hybrid engines, such as the one in Ford Camry's.

[@fenderpuddy5866]

Honestly on a base level, the concept of an automatic transmission was not that hard to learn; it just really starts to get complicated when you introduce more gear combinations. So it makes sense that a 2 speed automatic transmission on my gas powered r/c car is (relatively) not complex compared to a 6-speed + reverse car transmission, I guess I also understand why my r/c car does not have a form of reverse gear while the electric r/c cars have them

[@Calthecool]

I’m here because I just made a two speed automatic transmission out of Lego, and yes, it wasn’t really that complicated. However, I could never make a 6 speed automatic transmission, because that’s just a whole other level of complexity. Also, for an electric RC car to have reverse, all that needs to happen is for the ESC to feed the motor reverse voltage, and the engine spins backward. No extra gearbox needed. A gas RC car would have to have a forward/reverse gearbox, because you can’t just run a gas engine backward.

[@sugoruyo]

I just don't wanna know how the ZF 10-speed works, bloody hell.

[@StankPlanks]

Going to have to watch this a few more times. The people who figured out how to make transmissions have a lot to be proud of.

[@firozs7963]

I always wondered why it took a second to engage from N to D. I'm never going to complain ever again.

[@marcusp.9147]

I rather think it's a good educational video. Watched enough times and play with a few transmissions from the junk yard and I think I'll have a better understanding. So thank you to the creator of this video and keep up the good work.

[@mscir]

Great animation, I never knew why it was named 'planetary' and how it worked, this made the basic concept very clear. I'd like to see how a computer controlled gear shift works on a 6 speed transmission.

[@ant305tone]

God bless engineers, if it was up to me you all would still be riding horses

[@mandelaeffect3521]

TONY TONE and if it was up to me there would be no horses so use your two feet

[@irisrelay8564]

Climbing trees.

[@chaytonruijsenaars3971]

if it were up to me there would still only be maybe mechanical automatic transmissions and the home computer wouldnt have come out yet, i can grasp manuals and motors are cake but when you get into the rocket science side of things with the algebra you can count me out. . .and im probably giving myself too much credit as it is

[@vincentaziati7430]

hahahahahahahahahaahahahahahahahahahahahahahahaha

[@wildwest1832]

you pick up the horse poop

[@4minutecrafts59]

Me: An animation can prove helpful to understand this *7.35 mins later* Still cannot understand what tf was actually rotating and what was stationary.

[@schmoozingkaboodle5405]

Yea right 😅😅😅, I work with cars but this was some tricky Bullshit.

[@crymeariver546]

Everything looks like it's rotating!!!

[@AtownCangri]

Simplest explanation I've ever seen. Great job! I didn't get a headache this time lol

[@FractalMannequin]

Clear as usual. Thanks a lot! Yours is by far one of the best engineering channels I've ever seen.

[@jembothegreat]

"If you want to achieve six gear, just remove C1 and add C4" oh so basically im gonna turn my car into a bomb

[@nauseous3925]

😂🤣😂😆

[@shueibdahir]

😂😂😂😂😂😂

[@fliemark3158]

Your pfp lmao

[@anashouhou3438]

XDDDDDDDDDDDDDDDDDD

[@W.Khairi]

Hahahahahahahahah

[@coreym4475]

3:55 "but here's the tricky part"

[@robangles]

0:00 is when the tricky part started for me

[@isaaczamora8880]

For real lmao.

[@davecrupel2817]

Me: WHAT?!?!*

[@tomorrowcomestoday1621]

Anxiety kicks in 😱

[@mjluna33]

I need to re-watch this about 1000 more times...

[@scantube10]

First time watching. It's like magic. Many areas don't use them because they don't know how to service them.

[@bobbarker3248]

I understand the basic concept. You apply certain clutch packs to engage certain planetary gear sets to use a certain "gear". I still couldn't explain it in detail, like I could a manual transmission, but I think I get it.

[@AutomotiveForBeginners]

The other details are things like hydraulic pressure applied to clutch pistons. Similar to brake hydraulics. The other component is the actual gear ratios which are all different. Causing different planets to spin at different speeds.

[@davecrupel2817]

Brain out of order.

[@qotyit1655]

Same.

[@ChicagoSteve]

I think most people here saying how complicated it is also understand it at the level you're describing.

[@tornikechitadze20]

1st gear: okay, got it, understandable 2nd gear: what kind of hell is this...

[@Todsor]

I understood it because i watched Inception.

[@lemeandre]

LOL

[@stevegarcia1796]

🤯👍 👀

[@whothou]

YOU UNDERSTOOF FIRST GEAR??

[@ryszardsinius4828]

Thank you for such an easy and concise explanation. Makes perfect sense, first time watching! :)

[@InfamousKalen]

Happy to know I wasn't the only person to finish this very clearly well explained video and still... not have grasped wtf had been said for all 7 minutes and 35 seconds lol. I feel like I need to understand each part individually and why it does what it does before I can understand putting them together @_@

[@notallthatbad]

How on earth did ANYONE come up with this contraption? Cannot even in my wildest fantasies conceive of this. Goddamnit!

[@doodsravenlolo7173]

Good day,.... A piece of advice please don't use the name God in vain. Thank you. Thou shalt not take the name of the LORD thy God in vain; for the LORD will not hold him guiltless that taketh his name in vain. Exodus 20:7

[@kittyNya38]

Doods Raven Lolo Please get off the internet in if you can’t handle a simple swear word.

[@K4R007]

​@@doodsravenlolo7173 Goddamn the morons who came up with that goddamn, titty twisting, rule.

[@Wolf-hd1hr]

@@doodsravenlolo7173 Holy Fuck. (I'm using the word holy for swearing purpose, now please preach a few verses from bible for this)

[@EarthIsFlat456]

@@doodsravenlolo7173 Holy shit

[@wongterry510]

I wonder how many people are getting lost after the first 3 mins...

[@Diamondblade2008]

Me. My brain is hurting.

[@gaurankpandey3862]

not those who have a test just after 2 hours

[@ianpalopa3328]

Yes.

[@Like_Ike]

Me me me me me

[@lymperisgeorgioskarras2853]

samee

[@shivanshtandon388]

It’s actually a good and relatively easy to understand explanation.

[@luthergaming1649]

They was the best explanation I've ever seen in my life

[@ihatewhitey6689]

Watching a video how a jet engine works is easier to understand than this.

[@srinitaaigaura]

The simplest is the bicycle, then the motorbike, then Koenigsegg's light speed transmission, then the manual, the dual clutch, then the cvt and more complicated then all of them is THIS. You know, I think I'll just use an electric motor....

[@RizLazey]

@@srinitaaigaura bruh CVT is like easier than DCT or even Koenigsegg's Light Speed Transmission. Are you high or something?

[@srinitaaigaura]

@@RizLazey Easy to use yes, the engineering in cvts is a little more work.

[@TheFlick175]

Well jet engies aren't really complicated

[@safffff1000]

White invented this.

[@Potatinized]

brain was like: 1:00 uhuh. ofc 2:00 oh, i see 3:00 whoa.. science. 4:00 wait wut? rewatch 4:00 oh, i get it. 5:00 ... rewatch 5:00 ... rerewatch 5:00 oh, look. Funny cat video in the recommended.

[@marwanahmed317]

The Potato ahahahahahahaha

[@gr8guitarplayer]

That was hilarious!!!

[@mateow9650]

and at 6:00 the brain was "nopE. we are done here"

[@deogratiusvalerin3750]

Mateo W very funy

[@stormmeansnowork]

We haven't even gotten to the 7th gear yet

[@kylemangum8672]

I have a new found respect for the Allison 1000 in my old truck!!!

[@cjjenson8212]

I watch this just to relive the old days😁. All my vehicles are now EVs, but it took me back to school shop!

[@srinitaaigaura]

Q : How complicated do you want your transmission? A : Yes.

[@Admiral45-10]

,,Haha people were so stupid back then" Engineers in 1921:

[@moexus]

This gear design in Machine Design II course, it was the toughest course in mechanical engineering, the longest formulas we had to play with. Prof gave us open book exams and good luck passing it.

[@TheMultibest]

Yeah, I had to try three times to pass this course. Toughest course indeed!

[@gergoolle5773]

There is hope guys! I needed many times to watch and rewind, but I managed to understand it!

[@LieutenantSimonRiley141]

Thanks for explaining this complicated stuff into simple words now i know that it just works as it is supposed to work

[@fostercathead]

Honestly, I've never met an automatic transmission mechanic that wasn't a meth addict. And, I've never had any problems with the work that they have done.

[@hinababy624]

LMAOOO In my country its the Manual transmission mechanics who are meth addicts 🤣🤣🤣

[@thumpervansqueakynuts5848]

Iv seen them blaring metal and got tables covered in parts just from your transmission all in order too lol

[@jernej4168]

For anyone wanting to understand this the easy way just understand that '"C" stands for "clutch pack" and applying different combinations of clutch packs generates different gears. 1st gear: C1 + C5 (clutch pack 1 + clutch pack 5) 2nd gear C1 + C4 4th gear: C1 + C2 6th gear: C2 + C4 3rd gear: C1 + C3 5th gear: C2 + C3 Reverse: C2 + C3 + C5 Also: C1 connects input shaft to intermediate shaft C2 connects the hollow shaft to the rotating clutch module C3 connects the ring gear of the 3rd planetary gear set to the case C4 connects the ring gear of the 2nd planetary gear set to the case C5 connects the ring gear of the 1st planetary gear set to the case

[@gaouthamanmahendran9489]

Gr8

[@schmoozingkaboodle5405]

Now you put it like that it's all so simple..... 😕 😳 😵 💀 RIP

[@berkk29]

@Sabinka47 the transmission control unit applies those. I guess you are the bullshit

[@orderofelim]

Thanks!

[@superpayaseria]

😵😵😵😵😵😵😵😵😭😖😖😔😱

[@kraquake]

omg, after 30 mins and 2 other videos I finally understand how this works, and holy there are so many clutch packs

[@nosenserunner9089]

So this is the “simplest form of an automatic transmission . “ I thought I could follow this. I’m humbled once again.

[@micahcrissen9181]

“This is the simplest form of automatic transmission” well that’s reassuring

[@DPWheartscream]

traditional transmission lesson : "I got it" automatic transmission lesson : "um... excuse me, could you repeat it again?"

[@SpandanChatterjee2904]

exactly

[@SpandanChatterjee2904]

exactly

[@basharzeidan8905]

mickey mouse club house full english episode

[@aegystierone8505]

Same here.

[@kylemcconnell378]

Teacher: And that's how an automatic transmission works! Student: Could you go over the part where you started talking again please?

[@ulissesmiranda5518]

Now I know how to change gears in a automatic car. Going to buy one tomorrow. So excited!! 😊

[@niizumashiiori6402]

I recommend mapping the relations of every sun-planet-ring pair with their respective clutches, shafts, housing, whether their relations are gear to gear or rigidly connected , in order to grasp a better understanding & to even simplify even further the model given. Its a fun exercise really!

[@yehtan]

Now I need an automatic transmission for my brain.

[@nuffsaid5205]

I pressed pause and left this video for the recommended video "how the universe works" because that I can understand.

[@tturcato]

Lol

[@williamsquires3070]

It would have been helpful to also cover how the transmission fluid and the solenoids control the clutch packs, and how the TCU knows when to shift gear (ratios).

[@erickarevalo9158]

Exactly, that’s the key to understanding this

[@Gadavillers-Panoir]

I assume TCU is a type of computer. My understanding was that automatic transmission is of two types: 1) planetary gear systems like shown in this video 2) manual transmission with a computer controlling the shifting Or am I wrong?

[@melvinmcfly4498]

Wow, after so long, I finally got it, I have ascended to a higher plane of knowledge, I finally understand the automatic transmission.

[@ukkomies100]

If i apply c4 the homeland security will be calling me in the next two hours.

[@charumds491]

Hahaha true 😂

[@parsavulcan2003]

result of playing Counter-Strike 24/7

[@ManishKumar-op2kj]

@@parsavulcan2003 h

[@kimchi_taco]

after 2nd gear, my brain crash

[@Lesics]

+Dongseong Hwang Please watch it carefully once again. I am sure, you will get it.

[@kimchi_taco]

you encourage me to try again :) I think it's most intuitive video to explain it. if I don't understand here, I cannot understand. btw, this video doesn't explain why automatic transmission cannot reuse traditional transmission, and works like it. I need the explanation how external system controls automatic transmission. I'm looking forward to follow-up video.

[@Lesics]

We are planning to release a Manual Vs Automatic transmission video in the near future. You will get answers for these questions there.

[@kimchi_taco]

+Learn Engineering great! looking forward! btw, what tool do you use to draw models? I guess CATIA or Solidworks. Recently I found amazing tool; onshape, which is made by former solidworks engineers. www.onshape.com/learn/introduction-to-cad# what is exciting is it's free and web based. If you use it, your students easily see how the transmission work on onshape, if you publish your document as public.

[@Lesics]

+Dongseong Hwang We use Blender to model the things. I will check out the software you suggested. Than you

[@kagobonestalker1487]

It's amazing how something seemingly so complicated can be put into terms just simple enough for a lay person to understand. Well done!

[@colinashby3775]

I understood the words, but when put together here I was lost.great video. Thanks

[@McDonough_Georgia]

How is the video great if it just causes confusion. I thought it was just me.

[@colinashby3775]

@@McDonough_Georgia the visuals were great. But the mind was boggled

[@McDonough_Georgia]

@@colinashby3775 A video without a good representation is meant to fail.

[@dustinm5070]

Manual transmission videos are easy to understand, everytime I watch an automatic transmission video I fall asleep for 4 hours.

[@juancabeza5809]

Too bad this type of transmission wasn't available in the 60's... those explanation videos are the best...

[@samuelaavila8285]

I know right?

[@GewelReal]

It was but it was more like military stuff LOL

[@seuthee5082]

+Gewel hahahah right!

[@WAQWBrentwood]

+Gewel Automatics based on fluid couplings and planetary gear set have been around since the late 1930s. Manual transmissions based on planetary gears sets were used in the Model T starting around 1908.

[@vian_06]

Makasi om makin paham suda tentang transmisi berbagai model

[@68chevelleconcours]

I took a 350 turbo apart and rebuilt it.I still couldn’t understand how it worked so I watched this video to help it make sense and I’m not sure it did. It’s a good thing they didn’t get into the valve body to show us how to engage the clutch packs. The dude that invented this is a genius!!

[@charliedee9276]

Great explanation! For years I looked at automatics as black magic. In my mid 50's and have been wrenching all my life as well as being a Chassis Designer for GM and Chrysler for 20 years. Still I had not been into an automatic until the 4R75E in my 06 Ford Interceptor went south. Knowing how much a rebuilt one cost and the curiosity of how they work I figured what do I have to lose trying myself. I already had a factory service manual which had in detail how to do it. After studying how the clutches apply and when it was pretty straight forward to me. I ended up successfully rebuilding it and honestly it was pretty simple once the operation was understood.

[@purr_lude]

i overhauled multiple transmissions in trade school. could never fully grasp how the planetary gear set changes things because i keep forgetting the planet carrier exists. i think thats what confuses most people.

[@BangMaster96]

All of this in my $500 piece of crap Chrysler, Engineers are truly underrated, their work is not valued at the level of ingenuity it takes to develop the technology we use for comfort.

[@ahumandoing6813]

automatic transmission is the work of thousands of scientists and engineers. as an engineer, yes engineers are important but the contributions of most individuals are just a drop in the bucket.

[@BangMaster96]

@@ahumandoing6813 Sorry to bother you, but could you explain by how most people's contribution is just a drop in the bucket. I mean, i do know that it takes a whole team of scientists and engineers to design and build anything. But, doesn't it takes years of college to get a degree, and it's a very difficult subject with a lot of mathematics. How come after studying and getting a degree, an individual's contribution is still a drop in a bucket? How are things so complicated being built then?

[@MrLastlived]

Being fair, a 2002 chrysler sebring MSRP'd for 20k. Meaning your shitty chry depreciated 97.5% over its lifespan. This is not the fault of the engineers, this is because while we did value the effort when it was created (because for your car to exist today it was definitely bought by someone for that or close to that price) a car being resold had no such effort put into it. It merely passed from a consumer, to another consumer. That effort is causing the depreciation, especially when newer and more advanced products continue to be developed and desired over older models. Do not fret. We do value the efforts the R&D and engineers made for this to the tune of 10s of thousands. We do not value the effort a consumer makes to fuck it up with poor maintenance and driving.

[@bensweet2011]

Sunny shah Not the original commenter, but I can answer your question from my own perspective as an engineer: You already acknowledged that it takes a team to do anything, which I think is the main point. A second point is that technology is generally slowly built up over time with incremental improvements. The team of engineers at Chrysler that developed the transmission of your car did not invent the automatic transmission, they used a design that already existed within Chrysler and tweaked the specifications slightly to suit the specifications of the car. That original design was definitely the work of a very smart person, and was also probably crap compared to today’s automatic transmissions. Incremental improvements in parts design, materials, manufacturing processes, etc all add up to a better transmission over time. Engineering is all about using the tools and technology available to you to create the best functioning piece of hardware (or software) within economic constraints, not sitting around doing math. Yes, engineers learn a lot of math in school but don’t end up using most of it. So when you look at the team of engineers that worked on the transmission for your car, they most likely didn’t invent any part of it, but they created a piece of hardware using existing technology that suits the design criteria of the car, is reliable, and mass-produceable. And the day to day work of a single engineer on that team is probably not very impressive compared to the image of a genius inventor using complex math to come with a contraption that most people can’t even wrap their heads around (which is sadly a lot of people’s impression of what engineers do), but the continued work of engineers that leads to incremental innovations across different areas of industry is how consumer technology gets moved forward.

[@CASH-TO-THE-MERE101]

Sunny shah 👀

[@skiddliddandy2666]

I was with you all the way up to planetary gear.

[@gabri5381]

After months of rewatching this video I finally understood how it works

[@TheJupiteL]

Tl;dw: spinning stuff inside of spinning things.

[@DGCastell]

lmao

[@nanismeelasla]

Strygger makes my head spin

[@prinzikenna.o6577]

Hehehehe

[@West_Anderson]

No matter how many times I watch a video about automatic transmissions and planetary gearsets, I always come away scratching my head and realize the people who come up with these are on a different level.

[@awepossum1059]

Well first gears were invented long before planetary gearsets. then planetary gearsets were invented long before transmissions. Then transmissions were invented. Over hundreds of years, technology is built up, and engineers knew how to combine certain systems together to create new systems to solve problems

[@teflonpan115]

"This is the simplest form of automatic transmission" Oh, thank you for making me feel stupid.

[@jostrander71]

Its amazing all that works for years. It truly is a mechanical wonder.

[@jinggebit1835]

1st gear brain stat:100fps 2nd gear brain stat: 12fps 3rd gear brain stat: reboot

[@biologicallyyaseen]

Good luck to people doing mechanical engineering that have to understand this...

[@JonathanLov]

That would be me! :D

[@tiyanirivoningomilani9224]

+Abdul razzak Plot twist: You need to understand this before you're a Mechanical Engineer

[@rickdoherty2873]

you're all stupid. a mech engineering does theory and oil and gas stuff. rarely works w/ cars. That's a auto technician

[@MooseheadDrinker]

mech engineer needs to understand all this stuff because they design these things.

[@codykaufman2835]

I'm an EE and I understand this? John Deere Infinitely Variable Transmission... Now that's a f**king beast.

[@smithhuang2318]

thanks for share ,it is bit complex ,bit so clear to understand

[@maskofsorrow]

Excellent animation and explanation.

[@zevs301]

So, combinations are: gear -> clutches (gear ratio) 1 -> C1, C5 (3.10) 2 -> C1, C4 (1.81) 3 -> C1, C3 (1.41) 4 -> C1, C2 (1.00) 5 -> C2, C3 (0.71) 6 -> C2, C4 (0.61) R -> C3, C5 (-3.10?)

[@gregoryfilin8040]

Darko Kulic I believe reverse gear is somewhere between -3.10 and -1.41. So somewhere around -2.15 if if my rough guesswork is anywhere near correct.

[@vulfura]

Thank you! This r e a l l y helped me on my exam...

[@staycold547]

1 gear = (3,10) R gear = (-3,10)

[@toribioramirez12]

looks like someone was paying attention. lol thanks though

[@josephmcgill8026]

No

[@danjbundrick]

It's no use. It's still a box of magic to me.

[@riteshpahladsingh3819]

It's been 2 decades I'm trying to understand this thing. Still can't get much out of this videos

[@joeydrumstix]

Everybody watch precision transmissions KZbin videos. Phenomenal